I've got a one of the first light weight BCM rails made from aluminum and magnesium blend that fortunately I got on sale but it was still expensive. A good light weight keymod rail that was warped. They traded it out for me then I saw a video of a guy smashing into a barrier for a shot and his dented.
Names and price doesn't always get you what you want. In this case, I wanted light weight and got it but I won't be throwing this gun around.
As for flash hiders I like Vortex. Brakes I don't like at all, in fact I've got a BCM mod 0 brake I'd sell cheap if someone wants to try one. It works for its intended purpose but does not reduce flash at all.
I had an A1 flash hider from dpms once that I stuck on my LaRue barrel, it shot like 3" groups. I scratched my head and swapped the A1 with a Vortex and groups came together, 5 under an inch. I had a witness or I wouldn't even tell this story.
There are parts that work and parts that don't. They come from both sides.
I believe installing a muzzle device will change group size. Ive seen it myself. Thats good to point out, for guys that have never experienced that. I guess ill probably find out tonight. If its garbage, ill probably know after the first 5 shots. I may look into the vortex you speak of.
